Home / 66,832.28-92,228.52-39,981.09

Finding the Fourth Proportional to 66,832.28, 92,228.52 and 39,981.09

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Solution

The fourth proportional to 66,832.28, 92,228.52 and 39,981.09 is: 55,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,832.28 : 92,228.52 = 39,981.09 : x
  2. Step 2: Convert to fraction form
    66,832.28/92,228.52 = 39,981.09/x
  3. Step 3: Cross multiply
    66,832.28x = 92,228.52 × 39,981.09
  4. Step 4: Simplify right side
    66,832.28x = 3,687,397,254.47
  5. Step 5: Solve for x
    x = 3,687,397,254.47/66,832.28
  6. Step 6: Final answer
    x = 55,173.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.